“…Chemotherapy has little benefit, even in histologically atypical or malignant meningiomas [10]. Chemotherapeutic regimens (including cytosine arabinoside, Adriamycin, and vincristine; dacarbazine, Adriamycin, and high-dose ifosfamide; cyclophosphosphamide, Adriamycin, vincristine, interferon-α-2B and hydroxyurea, and hydroxyurea) were administered to patients, with a limited number of patients showing only marginal efficacy [1, 3, 10, 16, 17, 18]. …”